Siger m. Old High German sigu 'victory' + Old High German heri 'host, army'.

Belgium

Latin

● 1133 Sigero (abl) CartStBert 13; 1138 Sygerus (nom) ibid. 14; 1187 Sygerus (nom) ibid. 25

Middle Dutch

● 1336 Segers (gen) RSG1336-39 p. 4, Segre (dat) ibid. p. 8, Segren (dat) ibid. p. 2, Zeghere (dat) ibid. p. 11, Zegheren (dat) ibid. p. 9

England

Latin

● 1185x1186 Segari (gen) PR-XXXVI p. 9; 1189 Segari (gen) GASurv p. 219, Segarus (nom) ibid. p. 226, Sigarus (nom) ibid. p. 220; 1222 Sigari (gen) StPaulDom p. 20

Dutch

● 1588 Seger AuFr Courcelis; 1590 Seger ibid. Courcelis; 1592 Seger ibid. Courcelis; 1594 Zegher ibid. Corselis; 1596 Zegher ibid. Corselis; 1598 Seger ibid. Courcelis

France

Latin

● 697 Sicharius (nom) DCEL-2 Add. IX; 699 Sicharius (nom) Chart7th p. 570; c823 Sicharius (nom) irminon-vol2 65; 1088 Sigeri (gen) CartSPL1 VI; 1090 Sigeri (gen) ibid. VII; 1101 Sigeri (gen) ibid. X; 1378 Sigero (dat) hanquetvol1 no. 84, Sigerus (nom) ibid. no. 84, Sygeri (gen) ibid. 964

Ireland

Latin

● fin12thC Segarus (nom) MunDocIr III, p. 21, Segeri (gen) ibid. III, p. 7, Sigar (nom) ibid. III, p. 10

The Netherlands

Latin

● 834 Siger (nom) OrkGZ no. 30; 1258 Sygero (dat) OHZI-II no. 44

Spain

Latin

● 1011 Seger (nom) CDCB-XV MMCLXX; 1019 Segarius (nom) ibid. MMCLXXIV; 1020 Segario (nom) ibid. MMCLXXV